TTP223 touch sensor

TTP223 touch sensor
- Operating voltage 2.0V~5.5V
- Operating current @VDD=3V, no load
- At low power mode typical 1.5uA, maximum 3.0uA
- The response time max 220mS at low power mode @VDD=3V
- Sensitivity can adjust by the capacitance(0~50pF) outside
- Stable touching detection of human body for replacing traditional direct switch key
- Provides Low Power mode
- Provides direct mode toggle mode by pad option(TOG pin) Q pin is CMOS output
- All output modes can be selected active high or active low by pad option(AHLB pin)
- After power-on have about 0.5sec stable-time, during the time do not touch the key pad, And the function is disabled
- Auto calibration for life At low power mode the re-calibra tion period is about 4.0sec normally,
When key detected touch and released touch, the auto re-calibration will be redoing after about 16sec from releasing key For more information, please visit this products data sheet.
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